909 SE EVERETT MALL WAY WESTERN SYSTEMS 2016-01-01 MF Import

. . c fiyflCJ@f (SUSjJ8f1510f1� VVIf25 (ligures 5a and 56) • Hanger and perimeter wires must be plumb within 1 in 6 unless (figure Sa) counter sloping wires are provided (figure Sb). so�mo�. nsrn� c �ae sv�r�o�� zi.n • Hanger wires shall be 12 gage and spaced 4 teet on center or 10 gage spaced 5 feet on center. soo�c�:::.srre c u�e • Any connection device at the supporting construr,tion shall be capahle of car- rying not less than 100 pounds. __<��,�,.�:�. ascn <�„�:� a-a • Powder-driven shof-in anchors (PAFs) are an approved method of attachment tor hanger wires. so�«,��. s;:ne c� ��yo��, e��ao��.�� covos c�:-��,:cn • Terminai ends of each main beam and cross lee must be supported within 8 inches of each wall with a perimeter wire (see figure 4& 5 b). sw�ce: cis�n �n��c a-_+ • Wires shall not attach to or bend around interfering material or equipment. A trapeze or equivalent device shall be used where obstructions preclude direcl su=pension. Trapeze suspensions sha�l be a minimum of back-to-back 1 Y. inch cold-rolled channels tor spans exceeding 48 inches. s�,�r��:�. r,iscn:��:ti �-�i Electrical fixtures • Light fixtures weighing less than 10 pounds shall have one 12 gage hanger wire connected irom the fixture to the structure above. This wire may be slack. _ ouco: CIGCA Scismic ccncs 3-i • Light fixtures weighing more than 10 pounds and less than 56 Ibs. shall have two 12 gage wires atlached al opposing corners ot the light tixture to the structure above. These wires may be slack. s«,��o: c:scn se��,�c:��,:+��. • Light Fixtures weighing more than 56 Ibs. shall be supported directly from the structure above. These wiies must be taut. sr,��«o� ciscn so�;m�� :or,.,, a-a • Pendant mounted fixtures shall be direclly supported from the structure above using a 9 gage wire or an approved alternate support withoul using the ceiling suspension system lor direct supporl. sou�c��. ciscn s�-�m�c mnes a-�� • Tandem tixtures may ulilize common wires. Mechanicai Services • Terminals or services weighing 20 �bs. but not more than 56 Ibs. musl have lwo 12 gage wires connecting them to the ceiling system hangers or the structure above. These wires may be slack. so��o�: ciscn s��::�» �� =o��t� �-�+ • Terminals or services weighing more than 561bs. must be independently supported directly irom the structure above. These wires must be taut. s��ro:: CISCA $ei niie zrn�o� 3-1 Seismic Separation Joints 1n9��e» • For ceiling amas exceeding 2,500 square feet, a seismic separation joinl or full height wall partition lhat breaks the ceiling shall be provided unless analyses are performed of the ceilings bracing system, closure angles and penetrations to provide sufficient clearance. sm..�ce�. nsce ��os �oc��, sc�nr�, ias.� 2z d • The layout and localion of the seismic separation joint shall be per lhe design- er of record and noted on the plans. If a seismic separation joint is required by the designer, the designer may use the generic joint detailed in this document or a proprietary joint. The amount of (ree movement (gap design) shall be a ITIf11rt1UR1 01 �/i IflGh. Somcc: St�t> of urc-_ron. GuJAin� CoAcc Dimsion • In lieu o( seismic separation joints, the ceiling may be divided into areas less than 2500 square feel by the use of paAitions or soffits as follows: partitions shall extend a minimum o( 6 inches above the level of the plane o( the grid and shall be independently braced to the structure above. Soffits shall extend lo a point at least level with the bottom plane of the grid and shall be independently supported and laterelly braced to the structure above. so��o��:: s+:m: �+o-� a.�� e�� ie��a c�!�-; c:�,:,:o, • Other than panitions and soffits, seismic joints may not be used as part of a fire rated ceiling assembly unless substantiating documentation is provided. Snw[o�. Gmla al Oim.lon Eu Itl��ng Oud�� Dlvi3w� Sprinklers Fo� ^eilings without rigid o�acing, sprinkler head penelrations shall have a 2 inch oversi: e ring, sleeve or adapter through the ceiling tile to allow free movement of at least 1 inch in all horimntal directions. Flexible head design thal can accommodate 1 inch free movement shall be permitted as an alternate. so��a�: �+sce ��a r.?s e.a2 e i ligure 5a tigure Sb • Countersloping ligure Ga Vertiul han8er wire attachme�t =r,-i�.,;,xnn ------ SvuGwal conaete GcilingClp — a �m�s '/ai�lcel n�nge� r.+m — .. -- __ I =�-' s.: ligwe 6b SO�ayed seismlc bra�ng wiro atlachmenl _�M tlnl.m e�Dan�m ati"o� 5•vc�u�al cncmte --- i � 5'.eN svap t' w.tle x 2' lo��g x � 12 go9^ minimum ---- i ; •.wnc _. .. .... . .. . . . I _ � �.�:�.,� ___— —_—_ . sd�lea:c.. -oiac.rpv,-c ligure 7 m��m.,m � POU Flanyu nrvm NORiMP%EST IVALL A GEIUNG DURETU • SlI5PEN510N SVSTEMS POR AGDUSiILFL LFV-IN CEILINGS �